The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membership group,claiming nearly 110,000 student and professional members as of 2022.Its headquarters are in New York City. The ACM is an umbrella organization for academic and scholarly interests in computer science (informatics). Its motto is "Advancing Computing as a Science & Profession".

ACM, the Association for Computing Machinery, is the world's largest educational and scientific computing society, uniting educators, researchers and professionals to inspire dialogue, share resources and address the field's challenges.

As a leading global source for scientific information, ACM promotes computer research and innovation through its journals, magazines, and the proceedings of more than 170 annual conferences and symposia. ACM authors are among the world's leading thinkers in computing and information technologies, providing original research and firsthand perspectives.

Founded at the dawn of the computer age, ACM’s reach extends to every part of the globe, with more than half of its more than 100,000 members residing outside the U.S. Its growing membership has led to Councils in Europe, India, and China, fostering networking opportunities that strengthen ties within and across countries and technical communities. Their actions enhance ACM’s ability to raise awareness of computing’s important technical, educational, and social issues around the world.